Septimus Vaughan Morgan (1832-1913) of the Morgan Crucible Co
1855 Establishment of Morgan Brothers, bankers and merchants
1856 Started publishing business with his 5 brothers - see Morgan Brothers (Publishers)
1861 Maria Halse 58, proprietor of houses and fund holder (presumably sister of Edward Peter Halse), lived in Brompton, with her nephew William Reed 30 and his wife Mary A V Reed 26, and her nephews Septimus Morgan 24 (sic), merchant and factor, Octavius V Morgan 24, merchant and factor
Responsible for founding the Morgan Crucible Works
1913 Obituary 
SEPTIMUS VAUGHAN MORGAN died at his residence, 37 Harrington Gardens, London, S.W., on December 2, 1913. He was born in 1832, and was, therefore, in his eighty-second year. He was the seventh son of Thomas Morgan of Glasbury, and was educated at Christ's Hospital in Newgate Street.
On leaving school he was apprenticed to a medical man in the country, but eventually joined his elder brother, William Morgan, in a drug and hardware factors business in Jewin Street. In course of time four other brothers joined the firm in a partnership which lasted for about thirty years, but of which four of the original partners have since died, the two remaining having been Septimus and his brother, Walter Vaughan Morgan, who held the office of Lord Mayor in 1905-6. Amongst the brothers who had previously died were the actual founder of the firm, Major William Morgan, and Octavius Vaughan Morgan, who for some years sat in Parliament as the representative of the newly constituted borough of Battersea. The undertakings controlled by the Morgan Brothers included the well-known Crucible Company, one of the leading concerns of its kind in the world, and the equally well-known papers The Chemist and Druggist and the Ironmonger.
Septimus Vaughan Morgan was a man of great energy, keen intelligence, and sympathetic insight. He had travelled extensively and was one of the founders, and until two years ago a Member of Council, of the Royal Colonial Institute; he was also a founder of the Imperial Federation League, and took an active interest in the British East Africa Company. He was a member of the Iron and Steel Institute, having been elected in 1888, and took a keen interest in the work of the Institute, whose meetings he frequently attended.
He served on the Executive Committee of the General Reception Committee of the Institute on the occasion of the visit of the American Institution of Mining Engineers in 1906, when the members were entertained at the Mansion House by his brother. He also dispensed considerable private hospitality in the entertainment of members, both at the Gardens of the Royal Zoological Society, of which he was a member, and at his residence in South Kensington.